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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
13/11/2023 |
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Autoria: |
HYDER, D. N.; CONRAD, C. E.; TUELLER, P. T.; CALVIN, L. D.; POULTON, C. E.; SNEVA, F. A. |
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Título: |
Frequency sampling in sagebrush-bunchgrass vegetation. |
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Ano de publicação: |
1963 |
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Fonte/Imprenta: |
Ecology, v. 44, n. 4, p. 740-746, Oct. 1963. |
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DOI: |
https://www.jstor.org/stable/1933021 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Appropriate quadrat sizes and efficient allocations of sampling units were determined for frequency sampling of the Artemisia arbuscula/Festuca idahoensis association in southeastern Oregon. The theoretical considerations and equations pertinent to these determinations were reviewed. A quadrat 6 to 10 inches square is appropriate for frequency sampling of the common species, and an allocation of 10 to 20 quadrats per transect attains optimum efficiency. Quadrats and transects were held synonymous with subplots and plots in the application of subsampling theory for the determination of efficient allocations. A sample of 15 transects, each including ten 9-inch quadrats, was convenient, appropriate, and efficient. This sampling structure is recommended for subsequent frequency sampling of sagebrush-bunchgrass vegetation. |
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Palavras-Chave: |
Amostragem de vegetacao; Frequencia; Quadrat size; Sagebrush bunchgrass. |
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Thesagro: |
Pastagem. |
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Thesaurus Nal: |
Grasslands; Sampling. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01602naa a2200277 a 4500
001 1521547
005 2023-11-13
008 1963 bl uuuu u00u1 u #d
024 7 $ahttps://www.jstor.org/stable/1933021$2DOI
100 1 $aHYDER, D. N.
245 $aFrequency sampling in sagebrush-bunchgrass vegetation.$h[electronic resource]
260 $c1963
520 $aAbstract: Appropriate quadrat sizes and efficient allocations of sampling units were determined for frequency sampling of the Artemisia arbuscula/Festuca idahoensis association in southeastern Oregon. The theoretical considerations and equations pertinent to these determinations were reviewed. A quadrat 6 to 10 inches square is appropriate for frequency sampling of the common species, and an allocation of 10 to 20 quadrats per transect attains optimum efficiency. Quadrats and transects were held synonymous with subplots and plots in the application of subsampling theory for the determination of efficient allocations. A sample of 15 transects, each including ten 9-inch quadrats, was convenient, appropriate, and efficient. This sampling structure is recommended for subsequent frequency sampling of sagebrush-bunchgrass vegetation.
650 $aGrasslands
650 $aSampling
650 $aPastagem
653 $aAmostragem de vegetacao
653 $aFrequencia
653 $aQuadrat size
653 $aSagebrush bunchgrass
700 1 $aCONRAD, C. E.
700 1 $aTUELLER, P. T.
700 1 $aCALVIN, L. D.
700 1 $aPOULTON, C. E.
700 1 $aSNEVA, F. A.
773 $tEcology$gv. 44, n. 4, p. 740-746, Oct. 1963.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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